Patents by Inventor Anthony R C Usher

Anthony R C Usher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Resurfacing machine tool
    Patent number: 7726919
    Abstract: A machine tool includes a driver, a tool holder, and a locking device in the form of, for example, an alignment collar. In use, the machine tool carries a tool, such as a surface refinishing bit, which may be lowered into a workpiece bore, such as a cylinder head valve seat, and subsequently rotated by a machine spindle for resurfacing the bore. The machine tool receives a pilot shaft placed in a reference bore associated with the workpiece bore. The pilot shaft functions to ensure general alignment of the machine tool cutting axis and the refinishing surface.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: June 1, 2010
    Assignee: Rottler Manufacturing Inc.
    Inventors: Donald Brooks Rottler, Anthony R C Usher, Ranjit (Robin) Chera, Andrew Rottler